Stud removing tool



Dec. 26, 1950 JONES 2,535,638

STUD REMOVING TOOL Filed Feb. 2, 1949 INVENTOR Rober1 Edward Jones mil;%We% ATTORNEYS Patented Dec. 26, 1950 UNITED STATES- PATENT OFFICE STUDREMOVING TOOL Robert Edward Jones, Brooklyn, N. Y.

Application February 2, 1949, Serial No. 74,077

1 Claim.

The present invention relates to a novel and improved tool particularlyadapted for removing broken bicycle pedal studs.

Objects and advantages of the invention will be set forth in parthereinafter and in part will be obvious herefrom, or may be learned bypractice with the invention, the same being realized and attained bymeans of the instrumentalities and combinations pointed out in theappended claim.

The invention consists in the novel parts, constructions, arrangements,combinations and improvements herein shown and described.

The accompanying drawings, referred to herein and constituting a parthereof, illustrate one embodiment of the invention, and together withthe description, serve to explain the principles of the invention.

Of the drawings:

Figure 1 is a perspective view of a typical and preferred embodiment ofthe invention; and

Figure 2 is a perspective view of the tool of Figure 1 in use, certainparts being broken away.

The present invention has for its object the provision of a novel andimproved tool for removal of broken bicycle pedal studs from the hangerin which they are screwed. A further object is the provision of aspecial tool by which such studs may be easily and quickly removed evenwhen they are rusted in place, and without requiring any preliminarydrilling or like operation. The invention further provides a lever toolwhich may be secured to the slotted pedal stud and permits theapplication of a hi h unscrewing torque to the stud.

In accordance with the present invention the stud removing toolcomprises a fork or clamp having an open end, one jaw of the clamphaving fixed to it a rigid blade to fit in the end slot of the stud,while the other jaw is provided with a screw, threaded in the jaw andaxially alined with the blade and serving to exert powerful pressure onthe blade, by engagement with the broken end of the stud, after theblade has been inserted into the slotted end of the stud. When the studhas been clamped between the screw and blade, torque may be applied toturn the broken stud by pressure exerted on the handle formed as a leverextension on the fork or clamp. 'When the stud has been started, thetool may be removed, by loosening the clamping screw, after whichremoval of the stud may be completed with a conventional screw driver.

It will be understood that the foregoing general description and thefollowing detailed description as well are exemplary and explanatory ofthe invention but are not restrictive thereof.

Referring now in detail to the preferred and illustrative embodiment ofthe invention, the tool is shown in Figure l and comprises a strongclamp or fork iii, preferably of steel, of a general U-shape and havingits forked ends or jaws l2, preferably parallel to each other for amajor part or their length, and spaced apart somewhat more than thethreaded portion of a bicycle pedal stud. The jaw portions l2 arepreferably strengthened by means of a steel tension member I4! which isfixed at its ends in the metal of the jaw members 52. Near the end ofone jaw 12 is fixed a short blade [5 which is adapted to fit in the slotin the end of the pedal stud to be removed, and in the other jaw l 2 isthreaded a strong screw l8 which is axially alined with the blade 16, sothat the pointed end 253 of the screw 18 may be brought close to theblade It. The outer end of screw [8 is provided with a rod 22 whichforms a handle for turning the screw it! so that it may be tightenedagainst the broken stud to be removed.

For applying loosening torque to the stud through the blade It, a handle24 is provided and is preferably formed as a lever extension fixed tothe clamp or fork Ill. After the tool has been clamped to the bro-kenstud, powerful pressure may be exerted on the handle 24 so as to startthe broken stud and loosen it. Screw l8 may then be backed oiT so as topermit blade IE to be withdrawn from the slotted end of the stud, afterwhich removal of the stud may be completed by means of a conventionalscrew driver.

Figure 2 shows the tool of Figure 1 in use. As shown, the broken stud 3Bis screwed into one end of the pedal hanger 32 and the tool has beenapplied with the blade is held in stud slot 34 by pressure applied withscrew [8. Hanger arm 32 is then held and force applied through the leverformed by handle 24.

The invention in its broader aspects is not limited to the specificmechanisms shown and described but departures may be made therefromwithin the scope of the accompanying claim without departing from theprinciples of the invention and without sacrificing its chiefadvantages.

What is claimed is:

A. tool for removing broken bicycle studs, such as a broken bicyclepedal stud, comprising an open-ended clamp, having fixed jaws, a bladefor engaging a slot in a stud and fixed on one jaw of the clamp, a screwmember threaded in the other jaw and axially alined with the blade for 3engaging the broken end of the stud and holding the blade in the studslot, a metal tension member extending between and permanently securedto the jaws of the open-ended clamp in transverse relationship theretoat a point between the stud engaging members and the base of the clamp,and a handle portion fixed to the clamp and providing a lever forturning the blade and broken stud.

ROBERT EDWARD JONES.

REFERENCES CITED Number Number UNITED STATES PATENTS Name Date MarzyckMay 31, 1921 FOREIGN PATENTS Country Date France Jan. 11, 1923

